Certain keys aren't working on Dell Inspiron 1545
I need help to fix my keyboard issue. This is a single user Dell inspiron 1545 laptop and since few days I had been observing that certain keys aren't working on this keyboard. Sometimes they do work but most of the time they don't. These keys are 0 , - , p , [ , ; . Neither do they work without shift key nor with it. I have to use on-screen keyboard to get my workdone. This is tedious. I strongly feel that this must be a driver or keyboard bufer memory issue because sometimes they do work after being continoulsy pressed for 20-30 seconds and immediately after that they again stop working. I am not sure if it is some dust problem underneath those keys or if it is a hardware issue. I have tried to test the keyboard in safe mode but there wasn't any luck. Sometimes it work without any issues when using MSWORD 2007 however since few days those keys aren't working with MSWORD either.
In wait for some help.